Answer:

lastcall

Answer	Crossword Clue
LASTCALL	Final round
LASTCALL	Bartender's warning
LASTCALL	Bartender's cry

LASTCALL	Closing words?
LASTCALL	Pre-closing bar announcement
LASTCALL	Barkeep's yell
LASTCALL	Bartender's announcement
LASTCALL	Final chance at the diner.
LASTCALL	Departure-time words
LASTCALL	Waiting-room warning
LASTCALL	Gate announcement

LASTCALL	Barkeep's announcement
LASTCALL	Barkeeper's yell
LASTCALL	Bar announcement
LASTCALL	Bartender's late-night cry
LASTCALL	One-for-the-road time